McFartenplop

Got a rotated set up with Garrett T60 turbo. It was running over 450bhp but the heads on the car were maxxed out so should run 500 on AVCS heads but is the standard ECU able to handle this with an Apexi AVC-R or will I need to go Simtek?

jura11

iTrader: (7)

Hi there

You can use yours OE ECU at this level without the problem,although you will need to run Blown Through MAF setup(MAF will be at FMIC pipework) and possibly to run CarBerry(SuperROM) to allow run other features

Assume you are running New Age ECU or do you have Classic?

If you are thinking get SimTek/AlcaTek,I would choose Syvecs without the doubts,we are running this ECU and will be running this ECU on our new build

Jura

Jacko4130

iTrader: (3)

+1 for Syvecs if you got the cash.

MartynJ

In answer to the original question yes, you can run to well over 500bhp on the stock ecu, however it's always a bit of a fudge.
The Alcatek ecu whilst lacking the data logging of the Syvecs, has everything else you'll ever need for a high power Subaru and live mapping making it much nicer to tune than the stock ecu.
8 map options, antilag, lauch control with in car adjustability, flat shifting, closed loop knock control, closed loop idle, closed loop wideband, Toucan screen support and much more. In terms of cost it's also a fair bit less than the Syvecs.

Jolly Green Monster

iTrader: (4)

Setup one day on the oe ecu and the next on alcatek or syvecs and it would be so much a nicer car and you would wish you had gone that way.

Imho
Simon

trainer

I've just had a Syvecs ECU fitted to my 05 car its made a massive difference to the way the car drive Mine only running 370bhp ATW (Not sure what that is at the crank) The biggest difference the Syvecs as made is the car is a lot smoother turbo spools around 500rpm earlier and it holds onto its power for longer
At 5000rpm the Syvecs is making nearly 50bhp more than the standard ECU if you've got the cash I'd go with the Syvecs money well spent in my opinion.

wrx271

iTrader: (1)

I had the syvecs fitted about a month ago now I'm wanting a good responsive car so I started off with what's going to control everything as trainer said the car performs totally different now, with a fast linear power delivery.
Maybe it's mostly down to the way bob maps but I couldn't be happier with the set up, which at the moment is pretty basic.(soon to be a weapon).

Go syvecs the only thing I'm not overly impressed with is the rotary switch it's rather large and could do with being backlit. You have the toucan option aswell with both ecus syvecs/alkatek nice option but not cheap.

Dave

Tidgy

don't you need tp ush the boost higher than the limit to get to 500?

JTinnovations

iTrader: (2)

My own car worked OK on stock ECU but had no end of niggles at 470bhp-ish. Fitting the Syvecs was a revelation, making for a much more drivable car and the live mapping is much better too. Oh, and an extra 30bhp (on VPower) too

In my case the issue was exacerbated by the induction kit and, maybe, the fog-light mounted cold air feed. This caused massive issues with the MAF meaning it stalled when coming to a standstill as it could not measure the air properly.

YMMV

Bob Rawle

Aftermarket management is easier to setup to get the required level of performance once you go past 450 bhp but it, in itself, isn't going to give you "more" unless the oem ecu was not mapped as well. The results is down to the mapper which ever system you choose to run with. Syvecs or AlcaTek at that level either/or again depending on what you are looking to do. There is no reason for an oem ecu to drive a car badly in comparison to an after market item however past a level of modification the aftermarket product would/should accommodate things more easily.

In this case I agree with the consensus that aftermarket would very much be best, the choice of the ecu's mentioned should not affect the outcome.

There should be no need to use an external boost controller with any of the options btw.

bob

Jolly Green Monster

iTrader: (4)

This thread and ecu's used might be of interest to op

https://www.scoobynet.com/941285-sco...erboard-7.html

Simon

Shaun

It's horses for courses as has been suggested.

I personally run the OEM ECU (so still on MAF even with a FMIC) on EcuTEK at 480bhp no issues and the car drives as well as a standard car (it's as smooth as butter). For me nothing warrants the costs of a replacement ECU. I also had experience of running the OEM ECU at 500bhp on a previous SPEC C.

If anything I have found it's as much to do with the mapper as it is the parts you use imo.